If children are sponges when it comes to learning why do we wait until high school to let them learn eg calculus? And why censor anything from them? Seems like

If children are sponges when it comes to learning why do we wait until high school to let them learn eg calculus? And why censor anything from them? Seems like MORE exposure to ideas is better than less. The kids’ll sort out the truth for themselves when they inherit the earth.